What Were Charles Darwin's Two Fundamental Insights About the Process

question 21

Multiple Choice

What were Charles Darwin's two fundamental insights about the process of evolution?

• A) The environment selects on variation in the traits of individual organisms, and all species have descended from one or a few common ancestors.
• B) All species have descended from one or a few common ancestors, and populations, not individuals, evolve over time.
• C) The environment selects on variation in the traits of individual organisms, and organisms are in a constant struggle for existence.
• D) Populations, not individuals, evolve over time, and evolutionary change is connected to environmental fit.

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